Acetylene-gas generator.



No. 7|2,474. Patented Nov. 4, |902.`

n. BABNARD.

AGETYLENE GAS GENERATOR.,

(Application led Feb. 19, 1902.)

(Mmm.)

NITED" 4Sfrrmrns ,PATENT @man DAVIS BARNARD, OF BAKERSFIELI), CALIFORNIA, ASSIGNOR TO DAVE BARNARD & OO., OF BAKERSFIELI), CALIFORNIA.

ACETYLENE-GAS GENERATOR.

SEECIIFICATIQ forming part of Iietters Patent No. 712,474, datedNovember 4, 1902.

applicati@ ned rtmryle. 1902. semi Nas/1,776. oro maar.)

To LLZZ whom, it rita/y concern.:`

Beit known that LDAVIS BARNARD, 4a, citizen of the United States, residing at Bakersfield, in the county of K ern andjState ofhOalifornia, have invented a new and useful Gas Apparatus, of which the following isa specification. i

The present invention relates to gas apparatus, particularly that type employed in the manufacture of acetylene gas from calcium carbid. i

The prime object of this invention isto provide a simple and consequently inexpensive structure which is entirely automatic yand safe in action. A

More particularly, one of the important fea-l tures resides in the carbid-feeding mechanism and the operating means therefor, said mechanism and means being constructed'and arranged so that in case of extraordinary move- Inents resulting fromfabnormal pressure or other cause the operating mechanism will be' protected from injuries, while the carbid-feeding Will be cut off and the generation of gas stopped.

It is thought that ,the single view herewith presented, which -is a longitudinal section through the apparatus, will be sufficient for one skilled in the art to readily understand the structure.

The generating-chamber l0, which may be of any desirable material, is preferably cylindrical in form, havinga hopper-bottom 1 1, provided with" a discharge l2, said chamber` being supported upon suitable feet LA" water-supply pipe 14 is connected to the upper portion of the chamber, and a safety openended blow-o pipe 15 extends through the top of said chamber and well` below the Water-line. Supported upon the `upper end of the generating-chamber is the carbid-reservoir 16, having communication ,with said chamber through a passage-way 17, the upper.

end of which is formed into a suitable valve-` seat 18. yControlling this-communication is a downwardly-opening plug-valve 19, having a vertical stem 20,` that extends entirely through the carbid-reservoir and passing through a suitable stuffing-box 2l in the top of the same has its upper end projecting a considerable distance above said top. The

the bottom of fthe water-.tank and extends above/the levelof the water therein.` A globe or other valve 29 is placedin" said pipe to control the passage-way therethrough. A gassupply pipe 30, leading from the upper portion of the gasometer,passes through the lower portion ofthe water-tank `and isconnected to the main, as will be readily understood. The upper ends of` thesepipes arer preferably braced by a cross-pipe 3l,connec ting the same.

The mechanism for operating the valve 19 is as follows: A standard 32 is secured to the upper endof the bell and 'projects well above the guide-frame 27, saidmstandard `being provided near its upper end with a qstop-pin 33 and carrying at itsupper endfafgpulley 34. An actuating-lever 35 is `pivotedat one end to a bracket 36, secured to the carbid-reservoir, and its other end normallyengages the undersideof Athe stop-pin;33;""being held in this position by a cord or cable` 37, secured tothe freeend of the'lever and fpassing over the pulley 3-1, the opposite endj of said cord carrying a weight 38. The valtie-stem 2O is secured tothe actuating-lever bymeans of a .pin 39, anda coiled return-spring `41)'fs`ur- `rounds the projecting end of the valve-stem and is interposed between the top of the carbid-reservoir and the lever.

The operation of the apparatus is substantially as follows: `Assuming the 'bell 25 lowered, it will be evident thatthe actuating-lever will be likewise lowered, thus opening the valve and permitting the carbiditopass into the generating-chamber. The carbid-combining with the water therein will generate the gas, which, passing through the conduct- Ico ing-pipe 28, will enter the gasometer, and the pressure occasioned thereby will cause the gas-bell to rise. The Weight 38 and the return-spring 40 being sucientto maintain the lever 35 against the stop-pin, it will be eVident that when the gasometer rises the lever will also rise and the valve be consequently seated, thereby closing the communication between the carbid-reservoir and the generating-chamber and cutting off the feed of the carbid. Now in case the gas-bell should still continue to rise, either because an excessive amount ofgas was generated or from any other reason, it would in no Wise aect the valve or the actuating-lever, as the cord Would sim ply run over the pulley. Thus any danger ofinjury to the valve or the operating mechanism is avoided. In case, however, an accident should happen to the connection between the lever and the standard vS2-as, for instance, the cord 37 should break-the return-spring 40 Will be suflcient to hold the valve closed, and thus danger from this cause is eliminated. It Will therefore be seen that the apparatus as presented accomplishes all the objects pointed out in the preliminary portion of the specification, and it is to be understood that the invention is not limited to the particular construction shown, and changes in the size, shape, and many details of construction may be madewithout departing from the invention.

Having thus described myinvention, what Iclaim as new, and desire to secure by Letters Patent, is

l. In gas apparatus, the combination with a gasometer having a movable bell, of an upright stem arranged centrally upon the top of, and projecting above the bell, said stem having an offset stop, a generating-chamber, carbid-feeding mechanism, and operating means for the feeding` mechanism, said means including a lever bearing against the stop, a pulley mounted upon the stem abovethe stop, a flexible cord or cable secured to the lever and passing over the pulley, kand a Weight attached to the free end of the cord or cable.

2. In gas apparatus, the combination with a gasometer having a movable member, said member being provided with an upright stem having an offset stop intermediate its ends, of a gen erating-chamber, a carbid-reservoir having communication with the generating-chamber, a valve controlling the communication and provided With a stem that projects above the reservoir, a lever pivoted at one end and attached at an intermediate point to the valvestem, the free end of said lever bearing against the stop, a pulleyjournaled upon the stem above the stop, a exible cord or cable secured to the free end of the lever and passing over the pulley, and a weight attached to the free end of the cord or cable.

In testimony that I claim the foregoing as my oWn vI have hereto afxed my signature in the presence of two Witnesses.

DAVIS BARNARD.

Witnesses:

SAML. N. REED, W. D. YOUNG. 

